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2023121 · Pt electrode (15 mm × 15 mm × 0.1 mm) serves as the counter electrode. A saturated calomel electrode (SCE) serves as the reference electrode, which are conduct in 3.5 wt% NaCl solution by the electrochemical workstation (Gamry Reference 3000). ... The high-frequency ultrasonic vibration will cause a cavitation effect near the liquid-solid ...
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20231113 · GH4169 nickel-based high-temperature alloy demonstrates excellent mechanical, chemical, thermal shock, and mechanical load resistance properties. However, it is typically a difficult-to-machine material. Ultrasonic vibration–assisted milling can effectively solve the machining challenges of GH4169 nickel-based high-temperature …
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202021 · The ultrasonic frequency increasing led to the microhardness increasing with an increment of 19% from 236.1 HV 1.0 at 0 kHz ultrasonic frequency to 280.6 HV 1.0 at 41 kHz ultrasonic frequency. The major reason for this phenomenon was that the introduction of ultrasonic vibration with frequency of 25 kHz would refine the grain size.
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202351 · The forming unit was an electronic universal testing machine, and the ultrasonic unit was fixed on the forming unit by means of the holder. The ultrasonic unit was composed of an ultrasonic generator, a transducer, a horn and a tool head, which can provide ultrasonic vibration at a frequency of 20 kHz and an amplitude of 6 μm.
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Parts of the Ultrasonic Vibrating Sieve. Ultrasonic generator – The ultrasonic generator for the vibrating sieve can either be UF08 or GTS30. Its specifications are as follows: Power: 220V, 50/60Hz, Single-Phase. Power Consumption: 1A (Max.) Output Frequency: 36KHz. Operating Mode: Continuous Mode / Pulse Mode.
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202341 · The results indicates that the UHFVE is positively related to the ultrasonic amplitude, ultrasonic vibration frequency and density of the propagating medium. 2. The greater plastic deformation is produced in UVASM due to the additional high-frequency rubbing, burnishing and cutting-extrusion effect with a 24.8% increase of GND density …
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The 2.5 kg of Cu-1 wt% TiB 2 composite was fabricated by electrolytic pure Cu (99.97 wt% purity), sponge Ti (99.99 wt% purity), and homemade Cu-10 wt% B master alloys in an intermediate-frequency induction vacuum furnace equipped with an ultrasonic vibration device. The schematic representation of the experimental apparatus is depicted in Fig. 1, …
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1998101 · Tests were conducted at three ultrasonic vibration amplitudes (0, 4, and 10 μm) and five low-frequency vibration amplitudes (0, 15, 160, 315, and 470μm) for a total of 15 tests. The drilling force decreases linearly as the low-frequency amplitude increases. The decrease is most dramatic for the tests without ultrasonic vibrations (au=0μm ...
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@article{Guo2024EffectOU, title={Effect of ultrasonic vibration-assisted laser cladding frequency on the microstructure and properties of Fe-0.5C-15Cr alloy cladding layers}, author={Tieming Guo and Wenbin Lin and Xiong Peng and Yiwen Zhang and Ruihua Zhang and Xueli Nan and Qiao Qiu and Xiangbin Yi}, journal={Surface and Coatings Technology ...
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201571 · The direction of flow is determined by noting the phase relationship between i f (t) and q f (t).If ω D > 0, then q f (t) is lagging i f (t) by 90°.If ω D < 0, then q f (t) is leading i f (t) by 90°.Different methods of Doppler signal extraction are employed in [44-47].A normalised magnitude difference (NMD) method had been compared with quadrature …
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